You seem to be making the assumption that in other languages calling print is a blocking function that guarantees the printing of a string. Which it isn’t.
In python print adds your string to the stdout buffer, which eventually gets written out to the console. But it not guaranteed, if you want that guarantee you need to call flush on the stdout IO handler.
Dada has taken the approach of making blocking IO operations explicit, rather than purely implicit. The result is that if you want to perform an IO operation, you need to explicitly say when you want to block, rather than allowing an elaborate stack of runtime buffers dictate what happens immediately, what happens later, and what going to block further code execution.
In short this completely exists in other languages like Python, you’ve simply not be aware of it, or aware of the nuanced was in which it fails. But if your someone whose wasted hours wrestling with Python IO system, then you’ll appreciate the explicit nature of Dada’s IO system.
